Zend\Loader

While any valid PHP callback may be registered with spl_autoload_register(), Zend Framework autoloaders often
provide more flexibility by being stateful and allowing configuration. To provide a common interface, Zend
Framework provides the SplAutoloader interface.

Objects implementing this interface provide a standard mechanism for configuration, a method that may be invoked to
attempt to load a class, and a method for registering with the SPL autoloading mechanism.

To create your own autoloading mechanism, simply create a class implementing the SplAutoloader interface (you
may review the methods defined in the Methods section). As a simple
example, consider the following autoloader, which will look for a class file named after the class within a list of
registered directories.

Constructor
Autoloader constructors should optionally receive configuration options. Typically, if received, these will be
passed to the setOptions() method to process.

setOptions

Configure the autoloader state
setOptions($options)

setOptions()
Used to configure the autoloader. Typically, it should expect either an array or a Traversable object,
though validation of the options is left to implementation. Additionally, it is recommended that the method
return the autoloader instance in order to implement a fluent interface.

autoload

Attempt to resolve a class name to the file defining it
autoload($classname)

autoload()
This method should be used to resolve a class name to the file defining it. When a positive match is found,
return the class name; otherwise, return a boolean false.

register

Register the autoloader with the SPL autoloader
register()

register()
Should be used to register the autoloader instance with spl_autoload_register(). Invariably, the method
should look like the following: